A 15.0 k ohms resistor and a capacitor are connected in series, and then a 12.0 V potential difference is suddenly applied across them. The potential difference across the capacitor rises to 5.00 V in 1.30 micro second. (a) Calculate the time constant of the circuit. (b) Find the capacitance of the capacitor.
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answer both a and b..a12
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- 3. Find a vector in R' which can not be spanned by the vectors 1 4 Vị and v2 3 6. ||The displacement vectors Á and B shown in the Figure below both have magnitudes of 3 m. The direction of vector à is 0 = 30º. Find à + B O A. 7.10 О В. 5.20 О С. 3.00 O D. 1.30.With w = 500 rad/s, for V = 10 - j 20, find v(4 ms) إختر أحد الخيارات V 2.4- .a V 6.13 .b V 19.8 - .C angle (-63°) V 22 .d × V 10.4 .e
- 1.37 (a) Write each vector in Fig. E1.37 in terms of the unit vectors î and ĵ. (b) Use unit vec- tors to express vector C, where C = 3.00A - 4.00B. (c) Find the magnitude and direction of C.1AVector A = -3.00i + 3.00j and vector B = 3.00i + 4.00j. What is vector C = A + B? a. 7.00i + 7.00j O b. -3.00i - 3.00j c. -3.00i + 7.00j O d. 0.00i + 3.00j O . 0.00i + 7.00j